What is Six Sigma?
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Six Sigma is based upon improving processes by understanding and controlling variation, thus improving predictability of business processes.

Six Sigma at many organizations simply means a measure of quality that strives for near perfection. Six Sigma is a disciplined, data-driven approach and methodology for eliminating defects .

The term “Six Sigma” is a statistical term that refers to 3.4 defects per million opportunities (or 99.99966 percent accuracy), which is as close as anyone is likely to get to perfect. A defect can be anything from a faulty part to an incorrect customer bill. Six Sigma teams use extremely rigorous data collection and statistical analysis to ferret out sources of errors and to find ways to eliminate them.

The DMAIC Model

At the heart of Six Sigma is a systematic method for analyzing and improving business process called DMAIC. The DMAIC model includes five phases:

Define: What problem needs to be solved?

Measure: What is the capability of the process?

Analyze: When and where do defects occur?

Improve: How can process capability be Six Sigma?
            What are the vital factors?

Control: What control can be put in place to sustain the gain?

EXA and Six Sigma

The ultimately goal of EXA's quality management is six sigma. With DMAIC ,we continuously improve our process to achieve breakthroughs in quality performance and to deliver better services to our customers.